The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 2010
Filed:
May. 01, 2008
Oliver Theis, Hannover, DE;
Friedrich Timmermann, Garbsen, DE;
Oliver Theis, Hannover, DE;
Friedrich Timmermann, Garbsen, DE;
Thomson Licensing, Boulogne-Billancourt, FR;
Abstract
In a channel encoder comprising a dk-encoder stage and a precoding stage, obeyance of a repeated minimum transition runlength constraint is achieved because, between the dk-encoder and the precoder, data are passed through an RMTR encoder which replaces occurrences of a forbidden pattern by a current replacement pattern having the same length as the forbidden pattern. By appropriately selecting current replacement patterns from a predefined set of two different replacement patterns, DC-control can be achieved for the encoder output. The corresponding decoder is described, which also employs pattern replacement. These results are provided by a method of channel encoding binary data, wherein the data is contained in a n input sequence of data tuples. An input sequence of constrained tuples is generated that obeys the relationships heretorfore set forth. A post encoding step is applied with NRZI modulation to be used in a channel as described.